Constant-weight code: Difference between revisions

Revision as of 02:45, 23 April 2014

Revision as of 11:22, 30 April 2014

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{{main|one-hot}}

A special case of constant weight codes are the one-of-N codes, that encode <math>log_2 N</math> bits in a code-word of <math>N</math> bits. The one-of-two code uses the code words 01 and 10 to encode the bits '0' and '1'. aA one-of-four code can use the words 0001, 0010, 0100, 1000 in order to encode two bits 00, 01, 10, and 11. An example is [[dual rail encoding]], and chain link <ref>{{cite news

| title=System-on-Chip Design using Self-timed Networks-on-Chip

| url=http://www.design-reuse.com/articles/14561/system-on-chip-design-using-self-timed-networks-on-chip.html

| authors=W.J.Bainbridge, A.Bardsley, R.W.McGuffin

}}</ref> used in delay insensitive circuits. For these codes, <math>n=N,~ d=2,~ w=1</math> and <math>A(n, d, w) = n</math>.

== m of n codes==